Ptychocorax
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| Order Lamniformes Berg, 1958 |
| Family Anacoracidae Casier, 1947 |
| Genus Ptychocorax Glückman & Itshenko, 1980 |
| Ptychocorax aulaticus Glückman & Itshenko 1980: Coniacian, Uzbekistan, a; Mynbulak Depression, Kyzylkum Desert, b; Dzhyrakhuduk |
20120110 Fumio Nakagawa